"You are a tactful swordsman, so I will not renege on our wager. I grant you the kiss of eternal life, but, for your arrogance and pride I will temper my gift with this curse. You will be a mere shell of yourself as I strip you of most of your powers. Each nightfall, evils will be shown to you, and the pain of their victims will be your pain. You will never know rest as you wander this world searching to slay the horrors that haunt your sleeping world. You will suffer grievous wounds, but you will not die, and as eternity rolls on, you will crave my touch. Your face will bear my visage, and your eyes will burn with hellfire. But...let it not be said that I am without mercy. There shall be an end to your curse. If all the beasts of the dark are slain, then you may find rest."
January 1, 1970
https://en.wikiquote.org/wiki/Curses